Terminal means for electrical devices



Jan. 25, 1949. c. L. JAUSS 2,459,943

TERMINAL MEANS FOR AN ELECTRICAL DEVICE Filed June 7, 1946 Patented Jan.25, 1949 TERMINAL MEANS FOR ELECTRICAL DEVICES Carlos L. Jauss, NewYork, N. Y.

Application June 7, 1946, Serial No. 675,269

4 Claims. (Cl. 175-21) This invention relates to terminal boards andmore particularly to means for effecting electrical connections towindings such as used in reactors, transformers, inductances, etc.

One of the objects of this invention is to provide terminal means for anelectrical coil which does not require modification of the usual windingprocedures therefor. Thus, terminal means according to the instantinvention may be applied in a novel manner to a completely wound coilafter it has been housed in its casing.

Another object of this invention is to provide means for firmlyconnecting the coil winding to terminal lead wires so as to entirelyeliminate pulling stress upon the coil windings. Allied with this objectis the provision of rigid mounting means to be applied externally of acompleted coil assembly and having in addition provision for amechanical support for the coil windings. Thus, the recommended practiceof supplying mechanical strength to a wire in addition to soldering isfollowed.

Other objects of my invention will be ap. parent from the followingdescription, it being understood that the above general statements ofthe objects of my invention are intended to describe and not limit itany manner.

Referring to the drawing:

Fig. 1 is a perspective view of an electrical coil winding provided withterminal means pursuant to the instant invention.

Fig. 2 is a top plan view of the terminal board therefor.

The coil winding 5 shown in the'drawing is an inductance of the reactoror choke type having two output leads 5 and I. The layers of the coilwinding 5 are separated by the usual insulating paper and the outerwrapper 8 as well as the adhesive strip 8 perform the usual functions ofenclosing the winding and secur-' ing the output lead 8 respectively.

After the coil 5 is produced by conventional methods as by a coilwinding machine, it is suitably mounted on the laminated core III andthe metallic casing II is applied thereover. Any conventional means maybe utilized to complete the assembly of the structure and if theinductance is to be mounted on an electrical chassis, the casing II maybe formed as to provide a perforated projection serving as lug means.However, the reactor or choke as shown may be utilized by disposing thesame in a housing and sealing it therein by pitch or a similarsubstance.

The terminal connecting member I2 is designed to be applied externallyof the assembled reactor so as to provide an effective and simplemechanical connection thereto. The casing II is formed with pressed outprojections I4 and I5 which are integral therewith. The terminalconnecting member I2 is formed with a central opening I3 ofsubstantially the same external dimensions as the casing II. When themember I2 is fitted and retained over casing II as will be hereinafterdescribed, the central opening I3 is concentric with the winding 5. Themember I2 is formed of electrically insulating material such as fiber orplastic. When the member I2 is applied over the upper end of casing I I,it abuts the winding 5 and the end walls of opening I3 pass over theprojections I4 and I5 whereupon it is snapped thereover and firmlyretained in place, the upper end of coil 5 providing an opposing forcewhich maintains the member I2 in place in cooperation with theprojections I4 and I5. Thus, the upward thrust provided by the coil 5 ischecked by the projections I4 and I5 so as to eifect a firm connectionof the member I2 to the assembled reactor.

Member I2 thus embraces and extends outwardly of the casing I I.

Integral with member I2 are the wire retaining ears I6 and H aroundwhich the output leads 6 and 1 may be wound either before or after theyare respectively soldered to the metal wire connecting eyelets I8 andI9. It is to these eyelets I8 and I9 that terminal conductors aresoldered when the inductance is employed in an electrical circuit.

The simplicity with which the assembled reactor is provided withterminal means will be apparent, it being only necessary to slip thefiat member I2 over one end of the reactor casing whereupon the wiresmay be secured as aforesaid, the ears providing mechanical supporttherefor.

I have shown a preferred embodiment of my invention, but it is obviousthat numerous changes and omissions may be made therefrom withoutdeparting from its spirit. For example, since the reactor illustratedhas two output leads, the member I2 need have only the two cars andeyelets shown. If further terminals are necessary, such as intransformers, member I2 may be provided with commensurate terminal meansas will be evident.

I claim:

1. An electrical apparatus comprising an electrical coil winding, acasing for said winding and termnal means for said winding supported bysaid casing, said terminal means comprising an inj winding and meanson'said casing acting upon opposite ends of said insulating member tomaintain said insulatng member against displacement.

2. An electrical apparatus comprising an' electrical coil winding, acasing for said winding and terminal means for said winding supported bysaid casing, said terminal means comprising an insulating member havinga central opening fitted and retained over said casing so as to abutsaid winding, and projections formed on said casing and bearingdownwardly upon ends of said insulating member so as to maintain saidinsulating member against displacement, said abutting relationship ofsaid insulating member and winding being operative in providing anopposing force to that of said projections whereby said insulatingmemheris firmly secured around said casing.

3. An electrical apparatus comprising an electrical coil winding, acasing for said Winding, projections formed on said casing and terminalmeans engaged by said projections, said terminal means comprising aninsulating member having a central opening formed therein and beingfitted and retained over said casing by said projections, wireconnecting means on said insulating member, and ear-shaped membersadapted to have wires wound 4 thereon to provide mechanical supporttherefor in cooperation with the function of said wire connecting means.

4. An electrical apparatus comprising an electrical coil winding, acasing for said winding, terminal means for said winding supported bysaid casing. said terminal means comprising a normally fiat insulatingmember fitted and retained over said casing so as to substantiallyretain its flat Configuration, and wire connecting means on saidinsulating member whereby ends of said winding may be connected thereto,said insulating member having a central opening therein and means onsaid casing cooperating with said central opening for maintaining theinsulating member on the casing.

CARLOS L. JAUSS.

REFERENCES CITED The following references are of record in the file ofthis patent:

UN ITED STATES PATENTS

